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The importance of thermal boundary transitions on glacial geomorphology; mapping of ribbed/hummocky moraine and streamlined terrain from LiDAR, over Småland, South Sweden

Möller, Per LU and Dowling, Tom LU (2015) In GFF 137(4). p.252-283
Abstract
In this paper we synthesise previous sedimentological studies and new, high resolution, digital elevation models from southern Småland to investigate the evolution of a deglacial landscape. Starting approximately at the deglacial highest shoreline, there is a 20-40 km wide zone of ribbed and hummocky moraine that can be connected to the predominantly subaqueous Göteborg moraine. North of this there is a dramatic shift into streamlined terrain. Based on sedimentological investigations we conclude that these zones represent a sub/supraglacial stagnant-ice landsystem, followed by a subglacial active ice landsystem, which during their formations had very different thermal and process regimes along the ice-bed interface (freezing on/frozen... (More)
In this paper we synthesise previous sedimentological studies and new, high resolution, digital elevation models from southern Småland to investigate the evolution of a deglacial landscape. Starting approximately at the deglacial highest shoreline, there is a 20-40 km wide zone of ribbed and hummocky moraine that can be connected to the predominantly subaqueous Göteborg moraine. North of this there is a dramatic shift into streamlined terrain. Based on sedimentological investigations we conclude that these zones represent a sub/supraglacial stagnant-ice landsystem, followed by a subglacial active ice landsystem, which during their formations had very different thermal and process regimes along the ice-bed interface (freezing on/frozen versus wet-based basal regimes). New observations derived from high resolution, LiDAR digital elevation models reveals patterns of erosional/depositional and morphostratigraphic relationships that have not previously been observed, opening up gateways for future research. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
GFF
volume
137
issue
4
pages
252 - 283
publisher
Geological Society of Sweden
external identifiers
  • wos:000367018000002
  • scopus:84961286666
ISSN
2000-0863
DOI
10.1080/11035897.2015.1051736
language
English
LU publication?
yes
id
5aef1e7f-14de-41c9-a6fb-e8f3db1b6874 (old id 5365808)
date added to LUP
2015-12-04 10:56:21
date last changed
2017-04-09 03:03:14
@article{5aef1e7f-14de-41c9-a6fb-e8f3db1b6874,
  abstract     = {In this paper we synthesise previous sedimentological studies and new, high resolution, digital elevation models from southern Småland to investigate the evolution of a deglacial landscape. Starting approximately at the deglacial highest shoreline, there is a 20-40 km wide zone of ribbed and hummocky moraine that can be connected to the predominantly subaqueous Göteborg moraine. North of this there is a dramatic shift into streamlined terrain. Based on sedimentological investigations we conclude that these zones represent a sub/supraglacial stagnant-ice landsystem, followed by a subglacial active ice landsystem, which during their formations had very different thermal and process regimes along the ice-bed interface (freezing on/frozen versus wet-based basal regimes). New observations derived from high resolution, LiDAR digital elevation models reveals patterns of erosional/depositional and morphostratigraphic relationships that have not previously been observed, opening up gateways for future research.},
  author       = {Möller, Per and Dowling, Tom},
  issn         = {2000-0863},
  language     = {eng},
  number       = {4},
  pages        = {252--283},
  publisher    = {Geological Society of Sweden},
  series       = {GFF},
  title        = {The importance of thermal boundary transitions on glacial geomorphology; mapping of ribbed/hummocky moraine and streamlined terrain from LiDAR, over Småland, South Sweden},
  url          = {http://dx.doi.org/10.1080/11035897.2015.1051736},
  volume       = {137},
  year         = {2015},
}